Rhodium-catalyzed enantioselective hydrogenation using chiral monophosphonite ligands

被引:137
作者
Reetz, MT [1 ]
Sell, T [1 ]
机构
[1] Max Planck Inst Kohlenforsch, D-45470 Mulheim, Germany
关键词
enantioselection; reduction; rhodium and compounds; phosphorus compounds; amino acids and derivatives;
D O I
10.1016/S0040-4039(00)01099-6
中图分类号
O62 [有机化学];
学科分类号
070303 ; 081704 ;
摘要
Surprisingly high enantioselectivities in the Rh-catalyzed hydrogenation of itaconic acid dimethyl eater and methyl-2-acetamido acrylate are observed upon using chiral monophosphonite ligands derived from binaphthol (ee up to 94%). Although appropriate chelating diphosphonites are more effective, the easy modular synthesis of the chiral monophosphonites may allow for the optimization of a given asymmetric hydrogenation reaction. (C) 2000 Elsevier Science Ltd. All rights reserved.
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收藏
页码:6333 / 6336
页数:4
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